Milk Frother

Abstract

The present invention relates to kitchenware of electrical appliance, A milk frother comprises a container and an electrical base unit. The container is provided with a separating disc that divides the container into an upper cavity and a lower cavity. A stirrer with slave magnetic element is provided atop the separating disc. A heating device, a rotatable device and a motor are provided beneath the separating disc. the present invention utilizes a separating disc to completely insulate the upper cavity that holds milk and the working circuit that operates the stirrer so that milk will not leak into the bottom of container to affect working circuit and the lubricant of motor ii will not leak into the upper cavity to contaminate milk. So this scheme should provide a sanitary and safe milk frother. The use of magnets provides a clean and environment-friendly way to drive stirrer. The stirrer is just positioned in the upper cavity so that the stirrer can be more conveniently disassembled for cleaning.

1 . A milk frother , comprises:
 a container ( 1 ) and an electrical base unit ( 9 );   the container ( 1 ) is provided with a separating disc ( 3 ) that divides the container ( 1 ) into an upper cavity ( 11 ) and a lower cavity ( 12 ).;   a stirrer ( 5 ) is provided on the separating disc ( 3 ) with slave magnetic elements ( 54 );   a heating device ( 2 ), a rotatable device ( 6 ) and a motor ( 4 ) are provided beneath the separating disc ( 3 );   the rotatable device ( 6 ) is driven by the motor ( 4 );   in the course of rotation, the rotatable device ( 6 ) that is provided with driving magnetic elements ( 64 ) drives the stirrer ( 5 ) to operate because the driving magnetic elements ( 64 ) play the roles of magnetic pull to and centrifugal force from the slave magnetic elements ( 54 ).   
     
     
         2 . The milk frother of  claim 1 , wherein
 there are two pairs of driving magnetic elements ( 64 ) in the rotatable device ( 6 );   the polarity of driving magnetic elements ( 64 ) is set vertical and each pair of driving magnetic elements ( 64 ) are in symmetrical distribution centered by the output shaft of motor ( 4 );   the neighboring two driving magnetic elements ( 64 ) have an opposite polarity;   a pair of slave magnetic elements ( 54 ) with vertical polarity is provided in the stirrer ( 5 ) over the driving magnetic elements ( 64 );   M is even and M≧2, while N satisfying 1≦N≦M−1.   
     
     
         3 . The milk frother of  claim 2 , wherein
 the number M of the pairs of driving magnetic element and the number N of the pairs of slave magnetic element satisfy M=2N.   
     
     
         4 . The milk frother of  claim 2 , wherein
 a bracket ( 14 ) is provided beneath the heating device ( 2 ) and the motor ( 4 ) is mounted on the bracket ( 14 );   the rotatable device ( 6 ) is coupled to the output shaft of the motor ( 4 ) by the way of bell and spigot joint without contacting the heating device ( 2 ).   
     
     
         5 . The milk frother of  claim 2 , wherein
 a positioning axle ( 31 ) is provided on the separating disc ( 3 ) to facilitate the positioning of the stirrer ( 5 ). The positioning axle ( 31 ) locates in the center of the separating disc ( 3 );   the stirrer ( 5 ) comprises a magnetic element mounting rack ( 50 ) in which the slave magnetic element ( 54 ) is mounted;   a positioning hole ( 51 ) to match the positioning axle ( 31 ) of the separating disc ( 3 ) is provided in the center of the magnetic element mounting rack ( 50 ).   
     
     
         6 . The milk frother of  claim 5 , wherein
 a rotatable vane ( 55 ) is provided on the magnetic element mounting rack ( 50 );   a fixing ring ( 52 ) is coupled at both ends of the magnetic element mounting rack ( 50 ) and a fixing ring ( 53 ) is sheathed around the fixing ring ( 52 ).   
     
     
         7 . The milk frother of  claim 5 , wherein
 the positioning hole ( 51 ) is a blind hole.   
     
     
         8 . The milk frother of  claim 5 , wherein
 the driving magnetic element ( 64 ) is in a rectangular form and mounted vertically inside the rectangular groove of the magnetic element mounting rack ( 50 );   the slave magnetic element ( 54 ) is also in a rectangular form and mounted vertically inside the rectangular groove of the rotatable device.   
     
     
         9 . The milk frother of  claim 5 , wherein
 the driving magnetic element( 64 ) in an annular form and mounted inside the annular groove of the magnetic element mounting rack ( 50 );   the slave magnetic element ( 54 ) is in a sector form and mounted inside the sector groove of the rotatable device( 6 ).   
     
     
         10 . The milk frother of  claim 1 , wherein
 the container ( 1 ) is provided with a handle ( 8 ) that has a switch ( 7 );   the switch ( 7 ) controls the operation of the heating device ( 2 ) and the motor ( 4 ), and also has an indicating lamp ( 72 );   the container ( 1 ) is provided with a spout ( 13 );   the heating device ( 2 ) is also provided with a thermostat ( 21 ) in its lower part to monitor the temperature the heating device ( 2 ).